title: Natural organic compounds as alternative to methyl bromide for nematodes control.
abstract: Thirty-three organic acids and furfural metabolites were examined for their nematicidal activity against plant-parasitic, free-living and predacious nematodes. Propionic acid, 2-methylhexanoic acid, lactic acid, maleic acid, and furic acid were the most effective nematicides among normal chain organic acids, branched organic acids, hydroxy/keto-acids, dicarboxylic acids and furfural metabolites, respectively. Seven of the tested compounds were found to have more than 90% mortality thus designating them as highly active nematicides. Of the highly active tested compounds, an average octanol/water log P of 0.97 was observed with a range from 0.28 to 2.64, and a Henry's Law constant averaging 2.6 x 10(- 7) atm.m3/mole. Tested chemicals with minor or low nematicidal activity showed an average log P of 1.76 with a range from 0.15 to 3.42 and a Henry's Law constant averaging 16.6 x 10(- 7) atm.m3/mole.
authors.affiliation: Departmentsof Biology, Texas Southern University, Houston, TX 77004, USA. Abdelrahman FH@tsu.edu
authors.forename: Fawzia H
authors.initials: FH
authors.lastname: Abdel-Rahman
authors.forename: Shavon
authors.initials: S
authors.lastname: Clark
authors.forename: Mahmoud A
authors.initials: MA
authors.lastname: Saleh
mesh_terms: D000818:Animals; D000969:Antinematodal Agents / Q000494:pharmacology*; D001681:Biological Assay; D018556:Crops, Agricultural / Q000469:parasitology*; D006842:Hydrocarbons, Brominated / Q000009:adverse effects / Q000494:pharmacology; D009348:Nematoda / Q000187:drug effects* / Q000254:growth & development; D009676:Noxae / Q000009:adverse effects / Q000494:pharmacology; D009930:Organic Chemicals / Q000494:pharmacology*; D010571:Pest Control / Q000379:methods*
chemical_list: D000969:Antinematodal Agents; D006842:Hydrocarbons, Brominated; D009676:Noxae; D009930:Organic Chemicals; C005218:methyl bromide